Question

The mole fraction of C, H, OH (Molar mass 46) in 5 molal aqueous ethyl
elcohol solution is
0.086
5/55.5
0.826​

Answer 1

Answer:

1 molal aqueous solution means 1 mole of solute in 1 kg (or 1000 g) of water.

The molecular weight of water is 18 g/mol.

The number of moles of water =

18g/mol

1000g

=55.56mol

The mole fraction of the solute =

1mol+55.56mol

1mol

=0.018

Thus, option D is correct

Explanation:

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